Haruki hears about Kazusa's moving from her mother, who she hadn't been on good terms with.  He feels betrayed and angrily confronts her.  But his words force open the door to Kazusa's heart, which she had desperately tried to keep closed so that the three of them could stay together.
I've heard you're making 
him do everything for you.
Ich habe gehört, 
du lässt ihn alles für dich machen.
Escuché que lo has hecho hacer todo por ti.
He escuchado que está haciendo todo por ti.
On m’a dit qu’il passait son temps 
à s’occuper de toi.
Soube que ele acaba 
fazendo tudo por você.